Correct.
The offline (or cloud) backup is only needed in case something is not going right:
When you have no backup at all, I’d create a local backup ASAP if I were you.
For whatever (other) reasons things can go wrong at some point, and a backup of the current state puts your Homey back online with little effort.
But, again, installing the v12.8.2 software update does not affect any user setting.
